OpenEuphoria

Re: Help! GPF

• Posted by "Cuny, David" <David.Cuny at DSS.CA.GOV> Aug 03, 1999
• 663 views

Brent Hugh wrote:

> I'm developing a windows midi application in Euphoria
> and I am having the most vexatious possible GPF happen
> with some regularity.

I'd guess that Win32Lib is at fault. Probably in a routine in user32.dll,
but that doesn't really narrow down the scope - there are a lot of routines
in there. You might consider hacking Win32Lib a bit. Specifically, you could
define your own versions of c_func and c_proc, along the lines of:

   constant traceFile = open("trace.txt", "r")

   function my_c_func( atom i, sequence s )
      printf( traceFile, "function %d %x\n", {i,i} )
      return c_func( i, s )
   end function

   procedure my_c_proc( atom i, sequence s )
      printf( traceFile, "function %d %x\n", {i,i} )
      return c_proc( i, s )
   end procedure

When the program chokes, you have a trace of all the Win32 calls. From
there, you should be able to determine the code that's actually at fault,
and have some place to start debugging from.

-- David Cuny